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Marine clutter refers to unwanted radar yields caused by reflections from the surface of large bodies of water, such as oceans, seas or lakes. Radar signals incident on the water surface can reflect back to the radar receiver, producing echoes that appear as clutter on the radar display. Sea clutter usually manifests itself as stationary or slow yields due to the relatively calm movement of water surfaces. It poses a challenge for radar operators by masking or masking radar echoes potentially from real targets, such as ships or aircraft, which may be of interest.
Rain clutter refers to unwanted radar yields caused by reflections of precipitation, such as raindrops or snowflakes, in the atmosphere. Radar signals encountering precipitation may be scattered or reflected back to the radar receiver, creating echoes that appear as clutter on the radar display. Rain clutter can vary in intensity depending on the density and size of precipitation particles. It can obscure radar returns from real targets of interest, such as aircraft or ground vehicles, especially in areas experiencing heavy precipitation or snowfall.
Clutter in aviation refers to unwanted radar yields or echoes that appear on the radar display but do not represent intended aircraft or other targets of interest. Aviation radar systems may encounter clutter from a variety of sources, including ground reflections, atmospheric effects (such as precipitation or turbulence), and non-aerial objects (such as birds or debris). Clutter in aviation radar can obscure or interfere with aircraft detection and tracking, posing security risks and complicating air traffic control operations. Effective clutter removal techniques and signal processing algorithms are used to improve radar performance and ensure accurate aircraft detection in cluttered environments.